The apartment was a good 5 minute walk to Chong Nonsi station so not too far out of the way, it was also very close (taxi but on foot definitely possible) to Silom Road's restaurants, markets and food stalls. The apartment is cosy and basic and ideal for short term stays, and an absolute bonus is that it is next to an amazing new restaurant called MOKO, in the same street, a minute's walk from the building. The rooftop pool is great, offers exceptional views of Bangkok.
The host was not in BKK when I arrived, and unfortunately getting to the apartment proved a bit of a headache as the security staff didn't speak English at all and had no idea, nor did they have the key. After me getting a little annoyed that I couldn't get in to the building, they gave me a key. I went in to the building only to find that the key was someone elses, so having to go up and down several times, then back out of the building to security, with my luggage, in Bangkok heat, was exhausting. Luckily the host had also left a key in the mailbox just in case.

Having to buy wifi is an annoyance, the wifi went down for 4 hours during my day pass, but this was out of hours of operation of the management team. this is an issue with the service provider, not an issue with the host.
Newer towels would have been a bonus. The apartment is intimate and clean but didn't quite match the brilliance of the professional photos taken by Airbnb.

Would have liked more time to explore the area and the host provided comprehensive details about the place and surrounds. Definitely worth staying here if you're new to BKK as it really is a great base for exploring, whilst avoiding the crazy prices of the larger hotels.